In Photoshop, you can create 3D objects by using the tools that are available to you. The three most common tools used to create 3D objects are the Pen tool, the Brush tool, and the Polygonal tool. The Pen tool is used to draw lines and shapes on your canvas. The Brush tool is used to paint over areas of your canvas with a brush. The Polygonal tool is used to create polygons by selecting a point on your canvas and then pressing the OK button.